Fitriana, Yuyun and Wulandara, Devita Oqi and Purnomo, . and Suharjo, Radix (2019) Cross resistance of thiophanate-methyl tolerance Metarhizium flavoviride to some fungicides in vitro. In: International Conference and the 10th Congress of The Entomological Society of Indonesia, 6-9 October 2019, Kuta Bali. (Unpublished)

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In the previous study, we found an isolate of M. flavoviride that was still able to grow at the medium contains thiophanate-methyl up to 4 times of doses. The tolerance of the M. flavoviride to thiophanate-methyl led to hypothesis that this fungus was also tolerance to the other fungicides. This study was performed to investigate the growth capability of thiohanate-methyl tolerance M. flavoviride on the medium contains 8 different fungicides at 2 different level of doses as well as its pathogenicity after grown on fungicide-containing medium. Investigation on its pathogenicity was performed by applying the fungus to Sitophilus oryzae. The thiophanate-methyl tolerance M. flavoviride was able to grow on the medium contains mancozeb, ziram, and propineb at 1 time of dose but not for the other fungicides namely tricyclazole, isoprothiolane, difenoconazole, benomyl, and carbendazim. Conidial production was still observed on the medium contains mancozeb (1.23 x 108 conidia/mL), ziram (0.97 x 108 conidia/mL), and propineb (0.04 x 108 conidia/mL), however it was significantly lower than control (1.55 x 108 conidia/mL). Viability of the conidia was detected on the medium contains mancozeb and ziram, but not on propineb. Conidia viability on mancozeb (41%) was not significantly different than control (57%), meanwhile conidia viability on ziram (29.1%) was significantly lower than control. Mortality of the S. oryzae caused by the fungus after cultivated on the medium contains mancozeb (26,9%) and propineb (19,68%) was not significantly different than control (33,82%), however it was significantly lower when it grown on ziram containing-medium (5.36%).

Item Type: Conference or Workshop Item (Paper)
Subjects: S Agriculture > S Agriculture (General)
Divisions: Fakultas Pertanian (FP) > Prodi Proteksi Tanaman
Depositing User: YUYUN FITRIANA
Date Deposited: 04 Nov 2019 08:20
Last Modified: 04 Nov 2019 08:20

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